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how to re install os x mountain lion on my macbook pro?

My Mac book pro late 2011 was cracked. Service center said the problem is the hard drive. So I replaced a new hard drive. I replaced it with Toshiba hard drive. But I don't know how to install it. I don't have any os x disc. If I turn on my laptop and press option button, is the disk recovery is still exist? If not, how to install then? Please help. I have no idea.

MacBook Pro, OS X Mountain Lion (10.8.4)

Posted on Jul 3, 2013 9:27 AM

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Posted on Jul 3, 2013 9:29 AM

Try Internet Recovery: Command + Option + r

More info here: http://support.apple.com/kb/HT4718

2 replies

Jul 3, 2013 9:31 AM in response to applenotexpert

Macs that come with OS X Lion or Mountain Lion have got Internet Recovery, that allows you to reinstall Mac OS X even if you haven't got it installed in the hard disk. See > http://support.apple.com/kb/HT4718


To start in Internet Recovery, hold Command, Option (Alt) and R keys while your Mac is starting. Then, follow the steps to reinstall Mac OS X.


If you don't see any drive to install OS X, your hard drive isn't formatted. Close the Mac OS X installer and open Disk Utility. You have to select the hard drive at the top of the sidebar, go to Erase tab and erase the drive with Mac OS Extended (Journaled) as format. Finally, close Disk Utility and install Mac OS X. See > http://pondini.org/OSX/DU1.html


Internet Recovery may install the original Mac OS X version that come with your MacBook Pro. If it came with Lion and Lion is installed, open the App Store, go to Purchases tab and download Mountain Lion

how to re install os x mountain lion on my macbook pro?

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